Juy-wire fitting



J. A. ROCHE;

1,329,478, We" Patented'Feb.3,192o.

I. A.ROCHE.

GUY WIRE FITTING.

APPucATloN FILED APR. 24. 1919.

l ,329,478. Patented Feb. 3, 1920.

2 S H E E TS- S H E E I 2.

INVENTUR rE/1N '/1. ROCHE.' l

@Tram/EY JEAN A. noone, or DAYTON, oHIo.

UY-WIRE FITTING.

Specication of Letters Patent.

Patented Feb. 3, 1920.

Application led April 24, 1919. Serial No. 292,320.

To all whom it may concern.'

Be it known that I, JEAN A. ROCH, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Guy-Wire Fittings, of which the following is a specification.

This invention relates to a guy wire fitting for airplanes, and is intended lto be used as the fitting to which the ends of the struts are fastened and to which the diagonal brac.- ing wires are secured.

The obj ect of the invention is to provide a fitting which will permit the guy wire a small degree of movement in all directions, and yet does not use the usual two-way pivot connection.

It is a further object of this invention to provide a guy wire ittingin which no turn buckle need be used and yet which may readily be tightened up by turning the guy wire itself. A,

The elimination of the two-way pivot connection and the elimination of the turn buckle gives a simpler, cheaper and stronger construction, which presents much less head resistance on account of the elimination of these elements. Since several dozen guy wire fittings must be used on the average plane, it is important that the head resistange of each fitting be' made as small as possib e.

Other objects and advantages will appear as the description proceeds.-

In the drawings illustrating certain embodiments of my invention, Figure 1 is a View in side elevation of my improved guy wire fitting, the plate forming part of the iitting being shown broken away; Fig. 2 is an edge View of the same; Fig. 3 is a top view; Fig. 4 is a section on the line 4--4 of Fig. 3; Fig. 5 is a section on the line 5-5 of Fig. 3; Fig. 6 is a section on the line 6-6 of Fig. 4; Fig. 7 is a view showing 'two fittings as associated with the strut mounting- Fig. A8 is a view similar to Fig. 1 of a mo iication; Fig. 9 is a top view of Fig. 8; Fig. 10 is a view of another modification; Figs. 11 and 12 are front and side views, respectively, of a stranded cable and the special eye .bolt used therewith. 1

The plate forming the body of the fitting comprises a body portion 1 that is bolted by bolts 2 and 3 to a wing beam 4. This body portion is provided with upwardly bent arms 5 and 6, which are provided with a longitudinally extending slot 7, this slot being defined by the legs 8 and 9 of the arm 5. It should be understood that the fitting on the arm 6 is a duplicate of that on the arm 5 and accordingly only that fitting on the arm 5 will be described.

`An elliptically shaped or olive shaped element 10, provided with slots 11 and 12 cut therein so as to be bifurcated 'at each end is brazed or welded onthe end of the arm 5 and across the slot 7, the bifurcations 13 and 14 engaging over the legs 8 and 9. The top edges 15 and 16 of the legs 8 and 9 are respectively rounded o' so as to present the same curvature as the upper edge 17 of the element 10, which element 10 will hereafter be called an olive, the edges 15 and 16 being iush with the upper edge 17 of the olive.

The purpose of making the olive 10 tapered at both ends is to minimize the air resistance, the olive 10 being more or less stream lined in shape.

The olive 10 has drilled therein a conical aperture 18, which extends most of the way therethrough. A spherically shaped seat, the rounded wall of which is' indicated at 19 is drilled in the olive from .the other side,l so that the spherical seat and the conical aperture register with one another to provide an opening all the way through the olive through which the threaded guy wire 20 passes. The shoulder defining the spherical aperture is,indicated at 21.

The spherical surface 19 serves as a seat for a ball nut 22, the upper part of` which is rounded ofi' so as to tit snugly against the surface 19. The ball nut 22 is internally threaded to engage with the threaded p0rtion of the guy wire 20. The` ball nut 22 is provided with the usual lat'faces 22 and is of such a size that it will only turn a very small amount within the slot 7 before it engages with the walls of said slot to prevent further rotation thereof. I

It will accordingly be seen that the guy wire may be tightened up by simply turning the wire itself, during which operation the nut 22 will be held from turning and so a turn buckle adjustment will be had without the use of a turn buckle. After the guy wire 20 has been suiliciently tightened up by its being turned it is locked in its final position by a wire 23 passing through the hole 24 in the end of the guy wire 2() and fastened around the leg 8 of the plate. 5.

The other end of the guy wire being similarly fastened but provided vwith a thread of opposite sense z'. e. one end of the guy wire has a right hand thread, the other end has a left hand thread.

- It is evident that the use of the conicalv aperture 18, the coperating ball nut and spherical seat therefor, and the small clearance between the nut and the edges of the slot rovide a mountin for the guy wlre which permits of a smal degree of ad]ust ment in all directions, a universal movement which allows the wire to take its proper alinement and allows vibration within suitable limits. y

The part forming the main body of the guy wire 20, indicated at 25 is preferably, accoding to the well known practlce, stream line Referrin now to Fig. 8, a modification is shown in w ich the olive 10 is rovided with an additional slot 26 drilled 1n its side as shown, the purpose of this slot being to permit a quick release of the guy wire 20 from the olive. In order to effect this release the nut 22 is loosened' up slightly or the bolts 2 and 3 are loosened u slightly after which the ball nut-22rmay e pushed olf lts seat and the threaded portion may be detached from the olive. A lock nut, 22n may be used here to lock the nut 22, to prevent loss of length adjustment when the wire is out of the, fitting.

Fig. 10 shows a slight modificationadapted for the use of double guy wires. In this case it will be understood that the mounting for each wire is a substantial duplicatey of the mounting for the wire shown in the other ligures.

That isto say two conical apertures 27 and 28 willbe provided, as Well as two ball nuts 29 and 30, and coperating spherical seats therefor. The guy wires 20 will ea'ch be tightened up by turning the same and may be locked by a wire 31 passing through holes `24 in the ends of the respective wires, the ends of the locking wire being secured to each other as shown.

While I have shown the olive 10 made in a separate piece from the plate 5, it should be understood thatthese said parts may be made integral, that is to say that they may be drop forged at a single operation. This feature is important in that the fitting may be very cheaply and quickly produced.;`

The fact that the ball nut v22 acts to hold the wire in place and also coperates in giving a turn buckle, adjustment, without the use of a turn buckle, saves the weight and head resistance of 'a turn buckle, clevis pin and cotter pin, is an important point of "my invention.

madera freedom of adjustment.

My guy wire fitting may be used with any of the four common types of tension members used on airplanes, that is, with cables, wire, round tre rods and stream lined tie rods, and the claims should be interpreted accordingly.

In Figs. 11 and 12, I have shown a stranded cable and a special eye bolt for attaching it to the guy wire fittlng. This eye bolt comprises a' shank 37, threaded at 38, and provided with a hole 39. The other end of the eye bolt is provided with two pairs of bifurcations, the elements 40, 40 forming one pair, the element 41, together with a second similar element, no't shown, forming the other pair'. A bar 42 is made integral with or 1s razed or welded between the two pairs of bifurcations, and together with them, forms a mounting for the eye 43 formed in the end of the cable 44. The threaded portion 38 corresponds to the already described threaded portion 20 and engages with ball nut 22. Hole 3.9 is for a locking wire corresponding to locking wire 23, Fig. 1.

While I have illustrated certain embodiments of my invention, it should be understood that it may be carried out in other ways, as defined within the scope of the following claims.

I claim:-

1. A guy wire fitting, comprisin a plate f provided with a slot in the end t ereof, a guy wire 'seat fastened to the end of the plate to extend across the said slot, said seat being provided with an aperture in registry with said slot, said aperture being shaped so as to allow the guy wire a universal movement. I

2. A guy wire tting, comprising a late provided with a slot in the -end thereo and a guy wire seat fastened to the end of the plate to extend across the said slot, said guy wireseat being provided with an aperture therethrough registering with said slot.

3. The combination as claimed in claim 2,

'said aperture being of increasing size outwardly.

4. The combination as claimed -in 'claim 2, rsaid guy wlre'seat being furtherprovided with a -recess for a nut seat, said aperture and said recess being in registry.

5. A Aguy 'wlre ttin'g, comprising "a plate provided with a slot in the end thereof and a guy wire seat fastened to the end of the plate to extend across the said slot, said guy wire seat'being provided with a shouldered aperture therethrough, the shoulder of the aperture acting as a seat for a nut.

6. A guy Wire fitting, comprising a plate rovided with a slot in the end thereof and a guy Wire seat fastened to the end of the plate to extend across the said slot, said guy Wire seat being provided With an aperture that is narrowed for a part of its length andy Which then expands, the expanded portion serving as a seat for al nut.

7. A guy Wire fitting, comprising a plate provided With a slot, and a slotted guy Wire seat fastened to extend across the said slot, said plate engaging in the slot of said slotted guy Wire seat.

8. A guy Wire fitting, comprising a plate provided with a slot, and a guy Wire seat slotted at each end, said plate engaging in the slots of said slotted guy wire seat. \9. The combination as claimed in claim 1, said guy Wire seat being stream lined.

10. A guy Wire fitting, comprising a plate provided With .a kslot in the end thereof, and a stream lined guy Wire seat fastened to the end of said plate to extend across the slot,-

said \seat being provided With an aperture therethrough in registry with the slot.

11. A guy Wire fitting, comprising a plate provided with a slot in the end thereof, and a stream lined guy Wire seat fastened to the end of said plate to extend across the slot, said seat being provided with a tapered aperture therethrough in registry with the said slot, said seat bein further provided with a. shoulder extending into. said aperture,

said shoulder acting as a seat for a nut.

12. A guy wire fitting, comprising a plate provided with a slot in the end thereof, a guy'wire seat fastened to the end of said plate to extend across the said slot, Said guy Wire seat being provided with a conical aperture and a curved nut seat.

13. In combination, a plate provided With a slot in the end thereof, a guy Wire seat fastened to the end of Qaid plate to extend across the slot in said plate, said guy Wire seatbeingprovided yWith an aperture therethrough in registry with said slot, said guy Wire seat further being provided With a shoulder extending into said aperture, a guy Wire passing through said aperture and extending into said slot, and a nut on the end of said guy Wire adapted to engage against said shoulder.

14. In combination, a. plate provided With a slot in the end thereof, a guy Wire seat fastened to the end of said plate to extend across the slot in said plate, said guy Wire seat being provided With a tapered aperture therethrough in registry With said slot, said guy Wire seat further being provided with a curved shoulder extending into said aperture, a guy Wire passing through said aperture and extending into said slot and a ball nut on the end of said guy Wire adapted to engage against said curved shoulder.

y15. 'Ihe combination as claimed in claim 13, said guy Wire seat being stream lined.

In testimony whereof I aix my signature.

JEAN A. ROCHE. 

